Can you find out the missing number in the grid?

What is the largest number you can write with just 3 digits?

How can you take 2 from 5 and leave 4?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Bay of Bengal is in which state?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?